This outage was resolved at ~2pm Aug 30.
Prior Information Follows:
Outage: Intermittent DNS failures are causing slow network response times and intermittent application outages
General Impact: Our DNS servers are having trouble responding to queries. The servers are having longer than normal response times for those queries to increase and some queries are failing. These failures may manifest themselves as slow web pages, login failures, and slow server response times.
we are investigating the cause of the issue and will update you as we have more information